In a tail rotor quad system, which statement describes a fault where one cable has snapped?

In a tail rotor quad system, which statement describes a fault where one cable has snapped?

• A. Two cables snapped
• B. One cable snapped
• C. All cables intact
• D. Three cables snapped

Answer: (B)

In a tail rotor quad system, four independent cables transmit the pilot’s input to set tail rotor pitch. Each cable carries part of the load, so the number of snapped cables defines how severe the fault is. If one cable has snapped, exactly one of the four has failed while the other three remain intact. This is a partial fault where some control authority is still available, but it’s degraded and requires inspection and repair. The description matches the scenario of a single cable failure. If two, three, or all four cables were snapped, the fault would be more severe with greater loss of control, or none if all are intact.

In a tail rotor quad system, four independent cables transmit the pilot’s input to set tail rotor pitch. Each cable carries part of the load, so the number of snapped cables defines how severe the fault is. If one cable has snapped, exactly one of the four has failed while the other three remain intact. This is a partial fault where some control authority is still available, but it’s degraded and requires inspection and repair. The description matches the scenario of a single cable failure. If two, three, or all four cables were snapped, the fault would be more severe with greater loss of control, or none if all are intact.